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				synced 2025-11-03 23:21:29 +00:00 
			
		
		
		
	* Fixed memory leaks in socket, select and sv modules: mkvalue("O", v)
  does INCREF(v) so if v is brand new it should be XDECREF'd
		
	
			
		
			
				
	
	
		
			949 lines
		
	
	
	
		
			18 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			949 lines
		
	
	
	
		
			18 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
/**********************************************************
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						|
Copyright 1991, 1992, 1993 by Stichting Mathematisch Centrum,
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						|
Amsterdam, The Netherlands.
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                        All Rights Reserved
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						|
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						|
Permission to use, copy, modify, and distribute this software and its 
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						|
documentation for any purpose and without fee is hereby granted, 
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						|
provided that the above copyright notice appear in all copies and that
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						|
both that copyright notice and this permission notice appear in 
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						|
supporting documentation, and that the names of Stichting Mathematisch
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						|
Centrum or CWI not be used in advertising or publicity pertaining to
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						|
distribution of the software without specific, written prior permission.
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						|
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						|
STICHTING MATHEMATISCH CENTRUM DISCLAIMS ALL WARRANTIES WITH REGARD TO
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						|
THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
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						|
FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH CENTRUM BE LIABLE
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						|
FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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						|
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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						|
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
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						|
OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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						|
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******************************************************************/
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/* SV module -- interface to the Indigo video board */
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#include <sys/time.h>
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#include <svideo.h>
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#include "allobjects.h"
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#include "import.h"
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#include "modsupport.h"
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#include "compile.h"
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#include "ceval.h"
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typedef struct {
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	OB_HEAD
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	SV_nodeP ob_svideo;
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	svCaptureInfo ob_info;
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} svobject;
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typedef struct {
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	OB_HEAD
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	void *ob_capture;
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	int ob_mustunlock;
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	svCaptureInfo ob_info;
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	svobject *ob_svideo;
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} captureobject;
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static object *SvError;		/* exception sv.error */
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static object *newcaptureobject PROTO((svobject *, void *, int));
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/* Set a SV-specific error from svideo_errno and return NULL */
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static object *
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sv_error()
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{
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	err_setstr(SvError, svStrerror(svideo_errno));
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	return NULL;
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						|
}
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						|
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static object *
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svc_conversion(self, args, function, factor)
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						|
	captureobject *self;
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						|
	object *args;
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						|
	void (*function)();
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						|
	int factor;
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						|
{
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						|
	object *output;
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						|
	int invert;
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						|
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						|
	if (!getargs(args, "i", &invert))
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		return NULL;
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						|
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						|
	output = newsizedstringobject(NULL, self->ob_info.width * self->ob_info.height * factor);
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						|
	if (output == NULL)
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						|
		return NULL;
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						|
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						|
	(*function)((boolean) invert, self->ob_capture, getstringvalue(output),
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		    self->ob_info.width, self->ob_info.height);
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	return output;
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}
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static object *
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svc_YUVtoRGB(self, args)
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						|
	captureobject *self;
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	object *args;
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{
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	switch (self->ob_info.format) {
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						|
	case SV_YUV411_FRAMES:
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	case SV_YUV411_FRAMES_AND_BLANKING_BUFFER:
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		break;
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						|
	default:
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		err_setstr(SvError, "data had bad format");
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		return NULL;
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						|
	}
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						|
	return svc_conversion(self, args, svYUVtoRGB, sizeof(long));
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}
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static object *
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svc_RGB8toRGB32(self, args)
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						|
	captureobject *self;
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						|
	object *args;
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{
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						|
	if (self->ob_info.format != SV_RGB8_FRAMES) {
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		err_setstr(SvError, "data has bad format");
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		return NULL;
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	}
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	return svc_conversion(self, args, svRGB8toRGB32, sizeof(long));
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}
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static object *
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svc_InterleaveFields(self, args)
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	captureobject *self;
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						|
	object *args;
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{
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						|
	if (self->ob_info.format != SV_RGB8_FRAMES) {
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		err_setstr(SvError, "data has bad format");
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						|
		return NULL;
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						|
	}
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	return svc_conversion(self, args, svInterleaveFields, 1);
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}
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static object *
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						|
svc_GetFields(self, args)
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						|
	captureobject *self;
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						|
	object *args;
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						|
{
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						|
	object *f1, *f2, *ret;
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						|
	int fieldsize;
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						|
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						|
	if (self->ob_info.format != SV_RGB8_FRAMES) {
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						|
		err_setstr(SvError, "data has bad format");
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						|
		return NULL;
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						|
	}
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						|
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						|
	fieldsize = self->ob_info.width * self->ob_info.height / 2;
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	f1 = newsizedstringobject((char *) self->ob_capture, fieldsize);
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						|
	f2 = newsizedstringobject((char *) self->ob_capture + fieldsize, fieldsize);
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						|
	ret = mkvalue("(OO)", f1, f2);
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						|
	XDECREF(f1);
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						|
	XDECREF(f2);
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						|
	return ret;
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						|
}
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						|
	
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						|
static object *
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						|
svc_UnlockCaptureData(self, args)
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						|
	captureobject *self;
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						|
	object *args;
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						|
{
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						|
	if (!getnoarg(args))
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		return NULL;
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	if (!self->ob_mustunlock) {
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						|
		err_setstr(SvError, "buffer should not be unlocked");
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						|
		return NULL;
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						|
	}
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						|
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						|
	if (svUnlockCaptureData(self->ob_svideo->ob_svideo, self->ob_capture))
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						|
		return sv_error();
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						|
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						|
	self->ob_mustunlock = 0;
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						|
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	INCREF(None);
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						|
	return None;
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						|
}
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						|
#ifdef USE_GL
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#include <gl.h>
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static object *
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svc_lrectwrite(self, args)
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	captureobject *self;
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						|
	object *args;
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{
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						|
	Screencoord x1, x2, y1, y2;
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						|
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						|
	if (!getargs(args, "(hhhh)", &x1, &x2, &y1, &y2))
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		return NULL;
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						|
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						|
	lrectwrite(x1, x2, y1, y2, (unsigned long *) self->ob_capture);
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						|
	INCREF(None);
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	return None;
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}
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#endif
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static object *
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writefile(self, args)
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						|
	captureobject *self;
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						|
	object *args;
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{
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						|
	object *file;
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						|
	int size;
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						|
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						|
	if (!getargs(args, "O", &file))
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						|
		return NULL;
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						|
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	if (!is_fileobject(file)) {
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		err_setstr(SvError, "not a file object");
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		return NULL;
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	}
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	size = self->ob_info.width * self->ob_info.height;
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						|
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	if (fwrite(self->ob_capture, sizeof(long), size, getfilefile(file)) != size) {
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						|
		err_setstr(SvError, "writing failed");
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						|
		return NULL;
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						|
	}
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						|
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						|
	INCREF(None);
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						|
	return None;
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						|
}
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						|
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						|
static object *
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						|
svc_FindVisibleRegion(self, args)
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						|
	captureobject *self;
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						|
	object *args;
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						|
{
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						|
	void *visible;
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						|
	int width;
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						|
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						|
	if (!getnoarg(args))
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		return NULL;
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						|
	if (svFindVisibleRegion(self->ob_svideo->ob_svideo, self->ob_capture, &visible, self->ob_info.width))
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						|
		return sv_error();
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						|
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						|
	if (visible == NULL) {
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						|
		err_setstr(SvError, "data in wrong format");
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						|
		return NULL;
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						|
	}
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						|
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						|
	return newcaptureobject(self->ob_svideo, visible, 0);
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						|
}
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						|
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						|
static struct methodlist capture_methods[] = {
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	{"YUVtoRGB",		svc_YUVtoRGB},
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	{"RGB8toRGB32",		svc_RGB8toRGB32},
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						|
	{"InterleaveFields",	svc_InterleaveFields},
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						|
	{"UnlockCaptureData",	svc_UnlockCaptureData},
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	{"FindVisibleRegion",	svc_FindVisibleRegion},
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						|
	{"GetFields",		svc_GetFields},
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						|
#ifdef USE_GL
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						|
	{"lrectwrite",		svc_lrectwrite},
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						|
#endif
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	{"writefile",		writefile},
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						|
	{NULL,			NULL} 		/* sentinel */
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						|
};
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						|
static void
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capture_dealloc(self)
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	captureobject *self;
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{
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						|
	if (self->ob_capture != NULL) {
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		if (self->ob_mustunlock)
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			(void) svUnlockCaptureData(self->ob_svideo->ob_svideo, self->ob_capture);
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		self->ob_capture = NULL;
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		DECREF(self->ob_svideo);
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		self->ob_svideo = NULL;
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	}
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	DEL(self);
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}
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static object *
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						|
capture_getattr(self, name)
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	svobject *self;
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	char *name;
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{
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	return findmethod(capture_methods, (object *)self, name);
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}
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typeobject Capturetype = {
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						|
	OB_HEAD_INIT(&Typetype)
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	0,			/*ob_size*/
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	"capture",		/*tp_name*/
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	sizeof(captureobject),	/*tp_size*/
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	0,			/*tp_itemsize*/
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						|
	/* methods */
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						|
	capture_dealloc,	/*tp_dealloc*/
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	0,			/*tp_print*/
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	capture_getattr,	/*tp_getattr*/
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	0,			/*tp_setattr*/
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	0,			/*tp_compare*/
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						|
	0,			/*tp_repr*/
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						|
};
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static object *
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						|
newcaptureobject(self, ptr, mustunlock)
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						|
	svobject *self;
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						|
	void *ptr;
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						|
	int mustunlock;
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{
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						|
	captureobject *p;
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						|
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						|
	p = NEWOBJ(captureobject, &Capturetype);
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						|
	if (p == NULL)
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						|
		return NULL;
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	p->ob_svideo = self;
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						|
	INCREF(self);
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						|
	p->ob_capture = ptr;
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						|
	p->ob_mustunlock = mustunlock;
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						|
	p->ob_info = self->ob_info;
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						|
	return (object *) p;
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						|
}
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						|
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						|
static object *
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						|
sv_GetCaptureData(self, args)
 | 
						|
	svobject *self;
 | 
						|
	object *args;
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						|
{
 | 
						|
	void *ptr;
 | 
						|
	long fieldID;
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						|
	object *res, *c;
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						|
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						|
	if (!getnoarg(args))
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		return NULL;
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 | 
						|
	if (svGetCaptureData(self->ob_svideo, &ptr, &fieldID))
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		return sv_error();
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						|
	if (ptr == NULL) {
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						|
		err_setstr(SvError, "no data available");
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						|
		return NULL;
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						|
	}
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						|
 | 
						|
	c = newcaptureobject(self, ptr, 1);
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						|
	if (c == NULL)
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		return NULL;
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						|
	res = mkvalue("(Oi)", c, fieldID);
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						|
	DECREF(c);
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						|
	return res;
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						|
}
 | 
						|
 | 
						|
static object *
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						|
sv_BindGLWindow(self, args)
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						|
	svobject *self;
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						|
	object *args;
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						|
{
 | 
						|
	long wid;
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						|
	int mode;
 | 
						|
 | 
						|
	if (!getargs(args, "(ii)", &wid, &mode))
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						|
		return NULL;
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						|
 | 
						|
	if (svBindGLWindow(self->ob_svideo, wid, mode))
 | 
						|
		return sv_error();
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						|
 | 
						|
	INCREF(None);
 | 
						|
	return None;
 | 
						|
}
 | 
						|
 | 
						|
static object *
 | 
						|
sv_EndContinuousCapture(self, args)
 | 
						|
	svobject *self;
 | 
						|
	object *args;
 | 
						|
{
 | 
						|
 | 
						|
	if (!getnoarg(args))
 | 
						|
		return NULL;
 | 
						|
 | 
						|
	if (svEndContinuousCapture(self->ob_svideo))
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						|
		return sv_error();
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						|
 | 
						|
	INCREF(None);
 | 
						|
	return None;
 | 
						|
}
 | 
						|
 | 
						|
static object *
 | 
						|
sv_IsVideoDisplayed(self, args)
 | 
						|
	svobject *self;
 | 
						|
	object *args;
 | 
						|
{
 | 
						|
	int v;
 | 
						|
 | 
						|
	if (!getnoarg(args))
 | 
						|
		return NULL;
 | 
						|
 | 
						|
	v = svIsVideoDisplayed(self->ob_svideo);
 | 
						|
	if (v == -1)
 | 
						|
		return sv_error();
 | 
						|
 | 
						|
	return newintobject((long) v);
 | 
						|
}
 | 
						|
 | 
						|
static object *
 | 
						|
sv_OutputOffset(self, args)
 | 
						|
	svobject *self;
 | 
						|
	object *args;
 | 
						|
{
 | 
						|
	int x_offset;
 | 
						|
	int y_offset;
 | 
						|
 | 
						|
	if (!getargs(args, "(ii)", &x_offset, &y_offset))
 | 
						|
		return NULL;
 | 
						|
 | 
						|
	if (svOutputOffset(self->ob_svideo, x_offset, y_offset))
 | 
						|
		return sv_error();
 | 
						|
 | 
						|
	INCREF(None);
 | 
						|
	return None;
 | 
						|
}
 | 
						|
 | 
						|
static object *
 | 
						|
sv_PutFrame(self, args)
 | 
						|
	svobject *self;
 | 
						|
	object *args;
 | 
						|
{
 | 
						|
	char *buffer;
 | 
						|
 | 
						|
	if (!getargs(args, "s", &buffer))
 | 
						|
		return NULL;
 | 
						|
 | 
						|
	if (svPutFrame(self->ob_svideo, buffer))
 | 
						|
		return sv_error();
 | 
						|
 | 
						|
	INCREF(None);
 | 
						|
	return None;
 | 
						|
}
 | 
						|
 | 
						|
static object *
 | 
						|
sv_QuerySize(self, args)
 | 
						|
	svobject *self;
 | 
						|
	object *args;
 | 
						|
{
 | 
						|
	int w;
 | 
						|
	int h;
 | 
						|
	int rw;
 | 
						|
	int rh;
 | 
						|
 | 
						|
	if (!getargs(args, "(ii)", &w, &h))
 | 
						|
		return NULL;
 | 
						|
 | 
						|
	if (svQuerySize(self->ob_svideo, w, h, &rw, &rh))
 | 
						|
		return sv_error();
 | 
						|
 | 
						|
	return mkvalue("(ii)", (long) rw, (long) rh);
 | 
						|
}
 | 
						|
 | 
						|
static object *
 | 
						|
sv_SetSize(self, args)
 | 
						|
	svobject *self;
 | 
						|
	object *args;
 | 
						|
{
 | 
						|
	int w;
 | 
						|
	int h;
 | 
						|
 | 
						|
	if (!getargs(args, "(ii)", &w, &h))
 | 
						|
		return NULL;
 | 
						|
 | 
						|
	if (svSetSize(self->ob_svideo, w, h))
 | 
						|
		return sv_error();
 | 
						|
 | 
						|
	INCREF(None);
 | 
						|
	return None;
 | 
						|
}
 | 
						|
 | 
						|
static object *
 | 
						|
sv_SetStdDefaults(self, args)
 | 
						|
	svobject *self;
 | 
						|
	object *args;
 | 
						|
{
 | 
						|
 | 
						|
	if (!getnoarg(args))
 | 
						|
		return NULL;
 | 
						|
 | 
						|
	if (svSetStdDefaults(self->ob_svideo))
 | 
						|
		return sv_error();
 | 
						|
 | 
						|
	INCREF(None);
 | 
						|
	return None;
 | 
						|
}
 | 
						|
 | 
						|
static object *
 | 
						|
sv_UseExclusive(self, args)
 | 
						|
	svobject *self;
 | 
						|
	object *args;
 | 
						|
{
 | 
						|
	boolean onoff;
 | 
						|
	int mode;
 | 
						|
 | 
						|
	if (!getargs(args, "(ii)", &onoff, &mode))
 | 
						|
		return NULL;
 | 
						|
 | 
						|
	if (svUseExclusive(self->ob_svideo, onoff, mode))
 | 
						|
		return sv_error();
 | 
						|
 | 
						|
	INCREF(None);
 | 
						|
	return None;
 | 
						|
}
 | 
						|
 | 
						|
static object *
 | 
						|
sv_WindowOffset(self, args)
 | 
						|
	svobject *self;
 | 
						|
	object *args;
 | 
						|
{
 | 
						|
	int x_offset;
 | 
						|
	int y_offset;
 | 
						|
 | 
						|
	if (!getargs(args, "(ii)", &x_offset, &y_offset))
 | 
						|
		return NULL;
 | 
						|
 | 
						|
	if (svWindowOffset(self->ob_svideo, x_offset, y_offset))
 | 
						|
		return sv_error();
 | 
						|
 | 
						|
	INCREF(None);
 | 
						|
	return None;
 | 
						|
}
 | 
						|
 | 
						|
static object *
 | 
						|
sv_CaptureBurst(self, args)
 | 
						|
	svobject *self;
 | 
						|
	object *args;
 | 
						|
{
 | 
						|
	int bytes, i;
 | 
						|
	svCaptureInfo info;
 | 
						|
	void *bitvector = NULL;
 | 
						|
	object *videodata, *bitvecobj, *res;
 | 
						|
	static object *evenitem, *odditem;
 | 
						|
 | 
						|
	if (!getargs(args, "(iiiii)", &info.format, &info.width, &info.height,
 | 
						|
		     &info.size, &info.samplingrate))
 | 
						|
		return NULL;
 | 
						|
 | 
						|
	switch (info.format) {
 | 
						|
	case SV_RGB8_FRAMES:
 | 
						|
		bitvector = malloc(SV_BITVEC_SIZE(info.size));
 | 
						|
		break;
 | 
						|
	case SV_YUV411_FRAMES_AND_BLANKING_BUFFER:
 | 
						|
		break;
 | 
						|
	default:
 | 
						|
		err_setstr(SvError, "illegal format specified");
 | 
						|
		return NULL;
 | 
						|
	}
 | 
						|
 | 
						|
	if (svQueryCaptureBufferSize(self->ob_svideo, &info, &bytes)) {
 | 
						|
		if (bitvector)
 | 
						|
			free(bitvector);
 | 
						|
		return sv_error();
 | 
						|
	}
 | 
						|
 | 
						|
	videodata = newsizedstringobject(NULL, bytes);
 | 
						|
	if (videodata == NULL) {
 | 
						|
		if (bitvector)
 | 
						|
			free(bitvector);
 | 
						|
		return NULL;
 | 
						|
	}
 | 
						|
 | 
						|
	/* XXX -- need to do something about the bitvector */
 | 
						|
	if (svCaptureBurst(self->ob_svideo, &info, getstringvalue(videodata),
 | 
						|
			   bitvector)) {
 | 
						|
		if (bitvector)
 | 
						|
			free(bitvector);
 | 
						|
		DECREF(videodata);
 | 
						|
		return sv_error();
 | 
						|
	}
 | 
						|
 | 
						|
	if (bitvector) {
 | 
						|
		if (evenitem == NULL) {
 | 
						|
			evenitem = newintobject(0);
 | 
						|
			if (evenitem == NULL) {
 | 
						|
				free(bitvector);
 | 
						|
				DECREF(videodata);
 | 
						|
				return NULL;
 | 
						|
			}
 | 
						|
		}
 | 
						|
		if (odditem == NULL) {
 | 
						|
			odditem = newintobject(1);
 | 
						|
			if (odditem == NULL) {
 | 
						|
				free(bitvector);
 | 
						|
				DECREF(videodata);
 | 
						|
				return NULL;
 | 
						|
			}
 | 
						|
		}
 | 
						|
		bitvecobj = newtupleobject(2 * info.size);
 | 
						|
		if (bitvecobj == NULL) {
 | 
						|
			free(bitvecobj);
 | 
						|
			DECREF(videodata);
 | 
						|
			return NULL;
 | 
						|
		}
 | 
						|
		for (i = 0; i < 2 * info.size; i++) {
 | 
						|
			if (SV_GET_FIELD(bitvector, i) == SV_EVEN_FIELD) {
 | 
						|
				INCREF(evenitem);
 | 
						|
				settupleitem(bitvecobj, i, evenitem);
 | 
						|
			} else {
 | 
						|
				INCREF(odditem);
 | 
						|
				settupleitem(bitvecobj, i, odditem);
 | 
						|
			}
 | 
						|
		}
 | 
						|
		free(bitvector);
 | 
						|
	} else {
 | 
						|
		bitvecobj = None;
 | 
						|
		INCREF(None);
 | 
						|
	}
 | 
						|
 | 
						|
	res = mkvalue("((iiiii)OO)", info.format, info.width, info.height,
 | 
						|
		       info.size, info.samplingrate, videodata, bitvecobj);
 | 
						|
	DECREF(videodata);
 | 
						|
	DECREF(bitvecobj);
 | 
						|
	return res;
 | 
						|
}
 | 
						|
 | 
						|
static object *
 | 
						|
sv_CaptureOneFrame(self, args)
 | 
						|
	svobject *self;
 | 
						|
	object *args;
 | 
						|
{
 | 
						|
	svCaptureInfo info;
 | 
						|
	int format, width, height;
 | 
						|
	int bytes;
 | 
						|
	object *videodata, *res;
 | 
						|
	
 | 
						|
	if (!getargs(args, "(iii)", &format, &width, &height))
 | 
						|
		return NULL;
 | 
						|
	info.format = format;
 | 
						|
	info.width = width;
 | 
						|
	info.height = height;
 | 
						|
	info.size = 0;
 | 
						|
	info.samplingrate = 0;
 | 
						|
	if (svQueryCaptureBufferSize(self->ob_svideo, &info, &bytes))
 | 
						|
		return sv_error();
 | 
						|
	videodata = newsizedstringobject(NULL, bytes);
 | 
						|
	if (videodata == NULL)
 | 
						|
		return NULL;
 | 
						|
	if (svCaptureOneFrame(self->ob_svideo, format, &width, &height,
 | 
						|
			      getstringvalue(videodata))) {
 | 
						|
		DECREF(videodata);
 | 
						|
		return sv_error();
 | 
						|
	}
 | 
						|
 | 
						|
	res = mkvalue("(iiO)", width, height, videodata);
 | 
						|
	DECREF(videodata);
 | 
						|
	return res;
 | 
						|
}
 | 
						|
 | 
						|
static object *
 | 
						|
sv_InitContinuousCapture(self, args)
 | 
						|
	svobject *self;
 | 
						|
	object *args;
 | 
						|
{
 | 
						|
	svCaptureInfo info;
 | 
						|
 | 
						|
	if (!getargs(args, "(iiiii)", &info.format, &info.width, &info.height,
 | 
						|
		     &info.size, &info.samplingrate))
 | 
						|
		return NULL;
 | 
						|
 | 
						|
	if (svInitContinuousCapture(self->ob_svideo, &info))
 | 
						|
		return sv_error();
 | 
						|
 | 
						|
	self->ob_info = info;
 | 
						|
 | 
						|
	return mkvalue("(iiiii)", info.format, info.width, info.height,
 | 
						|
		       info.size, info.samplingrate);
 | 
						|
}
 | 
						|
 | 
						|
static object *
 | 
						|
sv_LoadMap(self, args)
 | 
						|
	svobject *self;
 | 
						|
	object *args;
 | 
						|
{
 | 
						|
	object *rgb, *v, *cell;
 | 
						|
	rgb_tuple *mapp;
 | 
						|
	int maptype;
 | 
						|
	int i, j;		/* indices */
 | 
						|
 | 
						|
	if (!getargs(args, "(iO)", &maptype, &rgb))
 | 
						|
		return NULL;
 | 
						|
	if (!is_listobject(rgb) || getlistsize(rgb) != 256) {
 | 
						|
		err_badarg();
 | 
						|
		return NULL;
 | 
						|
	}
 | 
						|
	mapp = NEW(rgb_tuple, 256);
 | 
						|
	if (mapp == NULL)
 | 
						|
		return err_nomem();
 | 
						|
	for (i = 0; i < 256; i++) {
 | 
						|
		v = getlistitem(rgb, i);
 | 
						|
		if (!is_tupleobject(v) || gettuplesize(v) != 3) {
 | 
						|
			DEL(mapp);
 | 
						|
			err_badarg();
 | 
						|
			return NULL;
 | 
						|
		}
 | 
						|
		for (j = 0; j < 3; j++) {
 | 
						|
			cell = gettupleitem(v, j);
 | 
						|
			if (!is_intobject(cell)) {
 | 
						|
				DEL(mapp);
 | 
						|
				err_badarg();
 | 
						|
				return NULL;
 | 
						|
			}
 | 
						|
			switch (j) {
 | 
						|
			case 0: mapp[i].red = getintvalue(cell); break;
 | 
						|
			case 1: mapp[i].blue = getintvalue(cell); break;
 | 
						|
			case 2: mapp[i].green = getintvalue(cell); break;
 | 
						|
			}
 | 
						|
		}
 | 
						|
	}
 | 
						|
 | 
						|
	if (svLoadMap(self->ob_svideo, maptype, mapp)) {
 | 
						|
		DEL(mapp);
 | 
						|
		return sv_error();
 | 
						|
	}
 | 
						|
 | 
						|
	DEL(mapp);
 | 
						|
 | 
						|
	INCREF(None);
 | 
						|
	return None;
 | 
						|
}
 | 
						|
		
 | 
						|
static object *
 | 
						|
sv_CloseVideo(self, args)
 | 
						|
	svobject *self;
 | 
						|
	object *args;
 | 
						|
{
 | 
						|
	if (!getnoarg(args))
 | 
						|
		return NULL;
 | 
						|
 | 
						|
	if (svCloseVideo(self->ob_svideo))
 | 
						|
		return sv_error();
 | 
						|
	self->ob_svideo = NULL;
 | 
						|
 | 
						|
	INCREF(None);
 | 
						|
	return None;
 | 
						|
}
 | 
						|
 | 
						|
static object *
 | 
						|
doParams(self, args, func, modified)
 | 
						|
	svobject *self;
 | 
						|
	object *args;
 | 
						|
	int (*func)(SV_nodeP, long *, int);
 | 
						|
	int modified;
 | 
						|
{
 | 
						|
	object *list, *v;
 | 
						|
	long *PVbuffer;
 | 
						|
	long length;
 | 
						|
	int i;
 | 
						|
	
 | 
						|
	if (!getargs(args, "O", &list))
 | 
						|
		return NULL;
 | 
						|
	if (!is_listobject(list)) {
 | 
						|
		err_badarg();
 | 
						|
		return NULL;
 | 
						|
	}
 | 
						|
	length = getlistsize(list);
 | 
						|
	PVbuffer = NEW(long, length);
 | 
						|
	if (PVbuffer == NULL)
 | 
						|
		return err_nomem();
 | 
						|
	for (i = 0; i < length; i++) {
 | 
						|
		v = getlistitem(list, i);
 | 
						|
		if (!is_intobject(v)) {
 | 
						|
			DEL(PVbuffer);
 | 
						|
			err_badarg();
 | 
						|
			return NULL;
 | 
						|
		}
 | 
						|
		PVbuffer[i] = getintvalue(v);
 | 
						|
	}
 | 
						|
 | 
						|
	if ((*func)(self->ob_svideo, PVbuffer, length)) {
 | 
						|
		DEL(PVbuffer);
 | 
						|
		return sv_error();
 | 
						|
	}
 | 
						|
 | 
						|
	if (modified) {
 | 
						|
		for (i = 0; i < length; i++)
 | 
						|
			setlistitem(list, i, newintobject(PVbuffer[i]));
 | 
						|
	}
 | 
						|
 | 
						|
	DEL(PVbuffer);
 | 
						|
 | 
						|
	INCREF(None);
 | 
						|
	return None;
 | 
						|
}
 | 
						|
 | 
						|
static object *
 | 
						|
sv_GetParam(self, args)
 | 
						|
	object *self, *args;
 | 
						|
{
 | 
						|
	return doParams(self, args, svGetParam, 1);
 | 
						|
}
 | 
						|
 | 
						|
static object *
 | 
						|
sv_GetParamRange(self, args)
 | 
						|
	object *self, *args;
 | 
						|
{
 | 
						|
	return doParams(self, args, svGetParamRange, 1);
 | 
						|
}
 | 
						|
 | 
						|
static object *
 | 
						|
sv_SetParam(self, args)
 | 
						|
	object *self, *args;
 | 
						|
{
 | 
						|
	return doParams(self, args, svSetParam, 0);
 | 
						|
}
 | 
						|
 | 
						|
static struct methodlist svideo_methods[] = {
 | 
						|
	{"BindGLWindow",	sv_BindGLWindow},
 | 
						|
	{"EndContinuousCapture",sv_EndContinuousCapture},
 | 
						|
	{"IsVideoDisplayed",	sv_IsVideoDisplayed},
 | 
						|
	{"OutputOffset",	sv_OutputOffset},
 | 
						|
	{"PutFrame",		sv_PutFrame},
 | 
						|
	{"QuerySize",		sv_QuerySize},
 | 
						|
	{"SetSize",		sv_SetSize},
 | 
						|
	{"SetStdDefaults",	sv_SetStdDefaults},
 | 
						|
	{"UseExclusive",	sv_UseExclusive},
 | 
						|
	{"WindowOffset",	sv_WindowOffset},
 | 
						|
	{"InitContinuousCapture",sv_InitContinuousCapture},
 | 
						|
	{"CaptureBurst",	sv_CaptureBurst},
 | 
						|
	{"CaptureOneFrame",	sv_CaptureOneFrame},
 | 
						|
	{"GetCaptureData",	sv_GetCaptureData},
 | 
						|
	{"CloseVideo",		sv_CloseVideo},
 | 
						|
	{"LoadMap",		sv_LoadMap},
 | 
						|
	{"GetParam",		sv_GetParam},
 | 
						|
	{"GetParamRange",	sv_GetParamRange},
 | 
						|
	{"SetParam",		sv_SetParam},
 | 
						|
	{NULL,			NULL} 		/* sentinel */
 | 
						|
};
 | 
						|
 | 
						|
static object *
 | 
						|
sv_conversion(self, args, function, inputfactor, factor)
 | 
						|
	object *self, *args;
 | 
						|
	void (*function)();
 | 
						|
	int inputfactor, factor;
 | 
						|
{
 | 
						|
	int invert, width, height, inputlength;
 | 
						|
	char *input;
 | 
						|
	object *output;
 | 
						|
 | 
						|
	if (!getargs(args, "(is#ii)", &invert, &input, &inputlength, &width, &height))
 | 
						|
		return NULL;
 | 
						|
 | 
						|
	if (width * height * inputfactor > inputlength) {
 | 
						|
		err_setstr(SvError, "input buffer not long enough");
 | 
						|
		return NULL;
 | 
						|
	}
 | 
						|
 | 
						|
	output = newsizedstringobject(NULL, width * height * factor);
 | 
						|
	if (output == NULL)
 | 
						|
		return NULL;
 | 
						|
 | 
						|
	(*function)(invert, input, getstringvalue(output), width, height);
 | 
						|
 | 
						|
	return output;
 | 
						|
}
 | 
						|
 | 
						|
static object *
 | 
						|
sv_InterleaveFields(self, args)
 | 
						|
	object *self, *args;
 | 
						|
{
 | 
						|
	return sv_conversion(self, args, svInterleaveFields, 1, 1);
 | 
						|
}
 | 
						|
 | 
						|
static object *
 | 
						|
sv_RGB8toRGB32(self, args)
 | 
						|
	object *self, *args;
 | 
						|
{
 | 
						|
	return sv_conversion(self, args, svRGB8toRGB32, 1, sizeof(long));
 | 
						|
}
 | 
						|
 | 
						|
static object *
 | 
						|
sv_YUVtoRGB(self, args)
 | 
						|
	object *self, *args;
 | 
						|
{
 | 
						|
	return sv_conversion(self, args, svYUVtoRGB, 2, sizeof(long));
 | 
						|
}
 | 
						|
 | 
						|
static void
 | 
						|
svideo_dealloc(self)
 | 
						|
	svobject *self;
 | 
						|
{
 | 
						|
	if (self->ob_svideo != NULL)
 | 
						|
		(void) svCloseVideo(self->ob_svideo);
 | 
						|
	DEL(self);
 | 
						|
}
 | 
						|
 | 
						|
static object *
 | 
						|
svideo_getattr(self, name)
 | 
						|
	svobject *self;
 | 
						|
	char *name;
 | 
						|
{
 | 
						|
	return findmethod(svideo_methods, (object *)self, name);
 | 
						|
}
 | 
						|
 | 
						|
typeobject Svtype = {
 | 
						|
	OB_HEAD_INIT(&Typetype)
 | 
						|
	0,			/*ob_size*/
 | 
						|
	"sv",			/*tp_name*/
 | 
						|
	sizeof(svobject),	/*tp_size*/
 | 
						|
	0,			/*tp_itemsize*/
 | 
						|
	/* methods */
 | 
						|
	svideo_dealloc,		/*tp_dealloc*/
 | 
						|
	0,			/*tp_print*/
 | 
						|
	svideo_getattr,		/*tp_getattr*/
 | 
						|
	0,			/*tp_setattr*/
 | 
						|
	0,			/*tp_compare*/
 | 
						|
	0,			/*tp_repr*/
 | 
						|
};
 | 
						|
 | 
						|
static object *
 | 
						|
newsvobject(svp)
 | 
						|
	SV_nodeP svp;
 | 
						|
{
 | 
						|
	svobject *p;
 | 
						|
 | 
						|
	p = NEWOBJ(svobject, &Svtype);
 | 
						|
	if (p == NULL)
 | 
						|
		return NULL;
 | 
						|
	p->ob_svideo = svp;
 | 
						|
	p->ob_info.format = 0;
 | 
						|
	p->ob_info.size = 0;
 | 
						|
	p->ob_info.width = 0;
 | 
						|
	p->ob_info.height = 0;
 | 
						|
	p->ob_info.samplingrate = 0;
 | 
						|
	return (object *) p;
 | 
						|
}
 | 
						|
 | 
						|
static object *
 | 
						|
sv_OpenVideo(self, args)
 | 
						|
	object *self, *args;
 | 
						|
{
 | 
						|
	SV_nodeP svp;
 | 
						|
 | 
						|
	if (!getnoarg(args))
 | 
						|
		return NULL;
 | 
						|
 | 
						|
	svp = svOpenVideo();
 | 
						|
	if (svp == NULL)
 | 
						|
		return sv_error();
 | 
						|
 | 
						|
	return newsvobject(svp);
 | 
						|
}
 | 
						|
 | 
						|
static struct methodlist sv_methods[] = {
 | 
						|
	{"InterleaveFields",	sv_InterleaveFields},
 | 
						|
	{"RGB8toRGB32",		sv_RGB8toRGB32},
 | 
						|
	{"YUVtoRGB",		sv_YUVtoRGB},
 | 
						|
	{"OpenVideo",		sv_OpenVideo},
 | 
						|
	{NULL,			NULL}	/* Sentinel */
 | 
						|
};
 | 
						|
 | 
						|
void
 | 
						|
initsv()
 | 
						|
{
 | 
						|
	object *m, *d;
 | 
						|
 | 
						|
	m = initmodule("sv", sv_methods);
 | 
						|
	d = getmoduledict(m);
 | 
						|
 | 
						|
	SvError = newstringobject("sv.error");
 | 
						|
	if (SvError == NULL || dictinsert(d, "error", SvError) != 0)
 | 
						|
		fatal("can't define sv.error");
 | 
						|
}
 |